In which of the following plants do roots play an insignificant role in water absorption?
Water lily
Rose
Mango
Wheat
Related Questions
Roots are absent in
Wolffia
Podostemon
Pistia
Lemna
Striga Collects
Water and minerals from the host
Only food from the host
Water and food from the host
All the above
Which one of the following conditions is seen in the roots of a plant having submerged assimilatory roots and spongy petioles?
Triarch
Monarch
Tetrarch
Diarch
Sucking roots are present in the plant
Betel
Cuscuta
Mangifera
Solanum
A root was described as adventitious root because it
developed from a stem cutting
grew downwards into the soil
absorbed water and minerals
developed from the radicle
Pneumatophores occur in
Submerged hydrophytes
Halophytes
Carnivorous plants
Free-floating hydrophytes
A mutant plant exhibits stunted root growth and reduced gravitropic response. Microscopic analysis reveals disorganized columella cells in the root cap. Which of the following is the MOST likely cause of this phenotype?
Increased production of cytokinin in the root tip
Disruption of amyloplast sedimentation and auxin redistribution
Overexpression of genes involved in cell elongation
Enhanced sensitivity to ethylene
Which of the following is NOT a function of the root hair zone?
Protecting the root tip
Absorbing water
Absorbing minerals
Increasing surface area for absorption
Which region of the root is responsible for the increase in root length?
Root cap
Root hair zone
Zone of elongation
Zone of maturation
A fibrous root system is excellent for
food storage
nitrogen fixation
absorbing water from deeper layer of soil
providing good anchorage for the plant
